RT Journal Article SR Electronic T1 Non-articular Forms of Rheumatoid Arthritis JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 595 OP 595 DO 10.1136/ard.36.6.595-b VO 36 IS 6 A1 Swannell, A. J. YR 1977 UL http://ard.bmj.com/content/36/6/595.2.abstract AB